Comment on Basics - Trading Interest rate futures
Hey Ranjith,
You’ll be able to use the 1 lac immediately. Yes,the duration is the same for F&O also.
You can use the credit realised from sale of option immediately. The systems will allow you you. However you may be levied a penalty. Why penalty? Explained here: http://tradingqna.com/615/options-tuesday-bought-options-immediately-charged-penalty